1 setstats
Copyright 2009  by B. Kohler   all rights reserved
K-designs
SPECIFICATION


L.W.L./L.o.a. :               11,00m + rudder
Beam          :                7,00m
Draft hull    :                0,60m
Draft rudders up:              0,40m
Distance bridge/CWL            0,70m
Weight empty                3000   kgs
Weight C.W.L.               4300   kgs
Sail area                     60,27m2
Reacher                       40,00 m2
L/B hull                      1:13,75
L/B to C/C                    47,27%
Righting moment :        20.000,00 kgm
Construction time approx.     3000 hours
Engines recommended 2 x 13 kW Diesel engines with saildrive
Tanks water 200 l + water maker
Tanks Diesel200 l
http://www.ikarus342000.com/Catpage.htm http://www.ikarus342000.com/INTRO.htm
updated 10.17.2009
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setstats
Seagull
long distance cruiser
The SEAGULL was designed in close cooperation with a customer. He wanted a relative big cat but for a modest amount of money, without sacrificing sea worthiness, speed or creature comfort. I think I have meet and partly exceeded the goal, After the customer looked at the drawings he made the decision to built the boat by him self, because of the simple construction. Number two was built by a Dutch boat building company The costs for the bare boat (without rig and furniture)  dfl. 75.000,-  ( in today’s money Euro 35.000,-). This was in 1990.
How is this possible? First of course through the trapezoid hull cross section. But the big saving is achieved by withdrawing the conventional gunwale/ deck, cabin coaming and roof construction.
The cabin roof starts direct at the deck sheer line. Through this construction, less material is needed and much labor is saved. The whale deck construction is much stronger (comparable to an eggshell). The positive effects are cumulative, for instance, more head room in the hulls (or higher cabin sole for water tanks etc.). On the sailing point of view, lower center of gravity i.e. greater stability, low wind and wave resistance, almost undisturbed airflow over the roof, which means that the lower area of the mainsail will deliver more power. The accommodation speaks for it self. The dimensions of the bunks, seats, bath room, galley etc, are comparable to these found at home.
The simple and high efficient rig is easy to manage from one person, because of the self tending jib and the full battened mainsail.
Construction is the time proven wood/glass/Epoxy construction system. The whole boat is covered with glass cloth. In this way the boat needs less maintenance than any other construction system.


The plan consists of 28 drawings and a construction description.
The basic costs for the plan is € 800,-  



Study plan Seagull ( US $ 15,-)